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<a href="block__histogram_8cuh.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2011, Duane Merrill.  All rights reserved.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (c) 2011-2013, NVIDIA CORPORATION.  All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * </span></div>
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<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> *     * Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *       notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *     * Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *       notice, this list of conditions and the following disclaimer in the</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &quot;specializations/block_histogram_sort.cuh&quot;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &quot;specializations/block_histogram_atomic.cuh&quot;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &quot;../util_arch.cuh&quot;</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &quot;../util_namespace.cuh&quot;</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;CUB_NS_PREFIX</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">namespace </span>cub {</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment"> * Algorithmic variants</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment"> ******************************************************************************/</span></div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2">   55</a></span>&#160;<span class="keyword">enum</span> <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2" title="BlockHistogramAlgorithm enumerates alternative algorithms for the parallel construction of block-wide...">BlockHistogramAlgorithm</a></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;{</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2ac14962247ae5693de2de53a8db40ca54">   67</a></span>&#160;    <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2ac14962247ae5693de2de53a8db40ca54">BLOCK_HISTO_SORT</a>,</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2abfc89fce43fcda396d18a4b2801025aa">   80</a></span>&#160;    <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2abfc89fce43fcda396d18a4b2801025aa">BLOCK_HISTO_ATOMIC</a>,</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;};</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="comment"> * Block histogram</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="comment"> ******************************************************************************/</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="keyword">typename</span>                T,</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="keywordtype">int</span>                     BLOCK_THREADS,</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <span class="keywordtype">int</span>                     ITEMS_PER_THREAD,</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="keywordtype">int</span>                     BINS,</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2" title="BlockHistogramAlgorithm enumerates alternative algorithms for the parallel construction of block-wide...">BlockHistogramAlgorithm</a> ALGORITHM = <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2ac14962247ae5693de2de53a8db40ca54">BLOCK_HISTO_SORT</a>&gt;</div>
<div class="line"><a name="l00149"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html">  149</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcub_1_1_block_histogram.html" title="The BlockHistogram class provides collective methods for constructing block-wide histograms from data...">BlockHistogram</a></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;{</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="comment">     * Constants and type definitions</span></div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2" title="BlockHistogramAlgorithm enumerates alternative algorithms for the parallel construction of block-wide...">BlockHistogramAlgorithm</a> SAFE_ALGORITHM =</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;        ((ALGORITHM == <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2abfc89fce43fcda396d18a4b2801025aa">BLOCK_HISTO_ATOMIC</a>) &amp;&amp; (<a class="code" href="group___util_module.html#ga76769ce380739b38e0bd00f57e0dbe4f" title="CUB_PTX_ARCH reflects the PTX version targeted by the active compiler pass (or zero during the host p...">CUB_PTX_ARCH</a> &lt; 120)) ?</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;            <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2ac14962247ae5693de2de53a8db40ca54">BLOCK_HISTO_SORT</a> :</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            ALGORITHM;</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structcub_1_1_if.html" title="Type selection (IF ? ThenType : ElseType) ">If</a>&lt;(SAFE_ALGORITHM == <a class="code" href="namespacecub.html#a845ca81ef9b346ef7429a35d4fdc80d2ac14962247ae5693de2de53a8db40ca54">BLOCK_HISTO_SORT</a>),</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;        BlockHistogramSort&lt;T, BLOCK_THREADS, ITEMS_PER_THREAD, BINS&gt;,</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;        BlockHistogramAtomic&lt;T, BLOCK_THREADS, ITEMS_PER_THREAD, BINS&gt; &gt;::Type InternalBlockHistogram;</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    <span class="keyword">typedef</span> <span class="keyword">typename</span> InternalBlockHistogram::TempStorage _TempStorage;</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="comment">     * Thread fields</span></div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    _TempStorage &amp;temp_storage;</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    <span class="keywordtype">int</span> linear_tid;</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="comment">     * Utility methods</span></div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    __device__ __forceinline__ _TempStorage&amp; PrivateStorage()</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    {</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;        __shared__ _TempStorage private_storage;</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;        <span class="keywordflow">return</span> private_storage;</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    }</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;</div>
<div class="line"><a name="l00203"></a><span class="lineno"><a class="code" href="structcub_1_1_block_histogram_1_1_temp_storage.html">  203</a></span>&#160;    <span class="keyword">struct </span><a class="code" href="structcub_1_1_block_histogram_1_1_temp_storage.html" title="The operations exposed by BlockHistogram require a temporary memory allocation of this nested type fo...">TempStorage</a> : <a class="code" href="structcub_1_1_uninitialized.html" title="A storage-backing wrapper that allows types with non-trivial constructors to be aliased in unions...">Uninitialized</a>&lt;_TempStorage&gt; {};</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;    <span class="comment">/******************************************************************/</span></div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;</div>
<div class="line"><a name="l00214"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html#a60061b56700655655b83a1c5921ae026">  214</a></span>&#160;    __device__ __forceinline__ <a class="code" href="classcub_1_1_block_histogram.html#a60061b56700655655b83a1c5921ae026" title="Collective constructor for 1D thread blocks using a private static allocation of shared memory as tem...">BlockHistogram</a>()</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    :</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;        temp_storage(PrivateStorage()),</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;        linear_tid(threadIdx.x)</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    {}</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div>
<div class="line"><a name="l00224"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html#aceed4d42c6ed10e14a707ab9a35a10c6">  224</a></span>&#160;    __device__ __forceinline__ <a class="code" href="classcub_1_1_block_histogram.html#aceed4d42c6ed10e14a707ab9a35a10c6" title="Collective constructor for 1D thread blocks using the specified memory allocation as temporary storag...">BlockHistogram</a>(</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;        <a class="code" href="structcub_1_1_block_histogram_1_1_temp_storage.html" title="The operations exposed by BlockHistogram require a temporary memory allocation of this nested type fo...">TempStorage</a> &amp;temp_storage)             </div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;    :</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;        temp_storage(temp_storage.Alias()),</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;        linear_tid(threadIdx.x)</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;    {}</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;</div>
<div class="line"><a name="l00235"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html#a7ba4e9f53945968ed47227376ea3caa1">  235</a></span>&#160;    __device__ __forceinline__ <a class="code" href="classcub_1_1_block_histogram.html#a7ba4e9f53945968ed47227376ea3caa1" title="Collective constructor using a private static allocation of shared memory as temporary storage...">BlockHistogram</a>(</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        <span class="keywordtype">int</span> linear_tid)                        </div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    :</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;        temp_storage(PrivateStorage()),</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;        linear_tid(linear_tid)</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    {}</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;</div>
<div class="line"><a name="l00246"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html#ae87c89f1175ce34f0c60f1cf9719d5f0">  246</a></span>&#160;    __device__ __forceinline__ <a class="code" href="classcub_1_1_block_histogram.html#ae87c89f1175ce34f0c60f1cf9719d5f0" title="Collective constructor using the specified memory allocation as temporary storage. Each thread is identified using the supplied linear thread identifier. ">BlockHistogram</a>(</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        <a class="code" href="structcub_1_1_block_histogram_1_1_temp_storage.html" title="The operations exposed by BlockHistogram require a temporary memory allocation of this nested type fo...">TempStorage</a> &amp;temp_storage,             </div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;        <span class="keywordtype">int</span> linear_tid)                        </div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;    :</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;        temp_storage(temp_storage.Alias()),</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;        linear_tid(linear_tid)</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    {}</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;    <span class="comment">/******************************************************************/</span></div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> HistoCounter&gt;</div>
<div class="line"><a name="l00298"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html#a3cae3cfe2ca8388fb2e3a18c0822db3a">  298</a></span>&#160;    __device__ __forceinline__ <span class="keywordtype">void</span> <a class="code" href="classcub_1_1_block_histogram.html#a3cae3cfe2ca8388fb2e3a18c0822db3a" title="Initialize the shared histogram counters to zero. ">InitHistogram</a>(HistoCounter histogram[BINS])</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    {</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;        <span class="comment">// Initialize histogram bin counts to zeros</span></div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;        <span class="keywordtype">int</span> histo_offset = 0;</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;<span class="preprocessor">        #pragma unroll</span></div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;<span class="preprocessor"></span>        <span class="keywordflow">for</span>(; histo_offset + BLOCK_THREADS &lt;= BINS; histo_offset += BLOCK_THREADS)</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;        {</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;            histogram[histo_offset + linear_tid] = 0;</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;        }</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;        <span class="comment">// Finish up with guarded initialization if necessary</span></div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;        <span class="keywordflow">if</span> ((BINS % BLOCK_THREADS != 0) &amp;&amp; (histo_offset + linear_tid &lt; BINS))</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;        {</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;            histogram[histo_offset + linear_tid] = 0;</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;        }</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;    }</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    <span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;        <span class="keyword">typename</span>            HistoCounter&gt;</div>
<div class="line"><a name="l00351"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html#a53ca73d018639c89b4e0b1ed3e0f67f0">  351</a></span>&#160;    __device__ __forceinline__ <span class="keywordtype">void</span> <a class="code" href="classcub_1_1_block_histogram.html#a53ca73d018639c89b4e0b1ed3e0f67f0" title="Constructs a block-wide histogram in shared/global memory. Each thread contributes an array of input ...">Histogram</a>(</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;        T                   (&amp;items)[ITEMS_PER_THREAD],     </div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;        HistoCounter        histogram[BINS])                </div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;    {</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;        <span class="comment">// Initialize histogram bin counts to zeros</span></div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;        <a class="code" href="classcub_1_1_block_histogram.html#a3cae3cfe2ca8388fb2e3a18c0822db3a" title="Initialize the shared histogram counters to zero. ">InitHistogram</a>(histogram);</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;        <span class="comment">// Composite the histogram</span></div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;        InternalBlockHistogram(temp_storage, linear_tid).Composite(items, histogram);</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    }</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;    <span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;        <span class="keyword">typename</span>            HistoCounter&gt;</div>
<div class="line"><a name="l00403"></a><span class="lineno"><a class="code" href="classcub_1_1_block_histogram.html#a86aca800e8a8e886b5d328e7aa3c5582">  403</a></span>&#160;    __device__ __forceinline__ <span class="keywordtype">void</span> <a class="code" href="classcub_1_1_block_histogram.html#a86aca800e8a8e886b5d328e7aa3c5582" title="Updates an existing block-wide histogram in shared/global memory. Each thread composites an array of ...">Composite</a>(</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;        T                   (&amp;items)[ITEMS_PER_THREAD],     </div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;        HistoCounter        histogram[BINS])                 </div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;    {</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;        InternalBlockHistogram(temp_storage, linear_tid).Composite(items, histogram);</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;    }</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;};</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;}               <span class="comment">// CUB namespace</span></div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;CUB_NS_POSTFIX  <span class="comment">// Optional outer namespace(s)</span></div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;</div>
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